Starting System

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2006 Jaguar XKR, 2006 Jaguar XK8, 2005 Jaguar XKR, 2005 Jaguar XK8, and 2004 Jaguar XKR. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION: When probing connectors to take measurements in the course of the pinpoint tests, use the adaptor kit, part number 3548-1358-00.

NOTE: When performing electrical voltage or resistance tests, always use a digital multimeter (DMM) accurate to 3 decimal places, and with an up-to-date calibration certificate. When testing resistance, always take the resistance of the DMM leads into account.

NOTE: Check and rectify basic faults before beginning diagnostic routines involving pinpoint tests.

Symptom Chart

Symptom (general)	Symptom (specific)	Possible source	Action
Non-Start	Engine does not crank	Engine sized Battery and/or cables Starter motor Starter relay Ignition switch ECM relay TCM Body processor module	Check that the engine turns. Check the battery condition and state of charge. For starter motor and cable tests, Refer to Pinpoint Test A .
Non-Start	Engine cranks too fast/slow	Battery and/or cables Starter motor Cylinder compression	Check the battery condition and state of charge. For starter motor and cable tests, Refer to Pinpoint Test A . Check compressions.